Python API - config file?

I use the commercial sdk with python bindings.

When initialising the alpr class, I pass the path to the config-file (e.g. “./openalpr.conf”).

But changes to the config-file seem to have no influence, even if I delete the file I do not see any difference or error message.

Is the config file used at all? Or does it use a default config stored elsewhere?

Thank you.